Abstract The specimens of anchorage structures bonded by different anchoring materials are prepared to study the damage and reduced safety reliability caused cyclic loading unloading stress roadway structure. Using Fiber Bragg grating, acoustic emission monitoring ANSYS, structures’ bearing properties, interface failure characteristics, overall mode internal influence mechanism obtained under p...

The accumulated damage of the surrounding rocks induced by existing coal mining activities (such as excavation and extraction) is initial mechanical background rock for further operations. An energy-based Cumulative Initial Damage (CID) variable was proposed to account such damage. With MTS815 electro-hydraulic servo-controlled system, samples with different CID value were prepared cyclic pre-l...

The tension–tension fatigue behavior of (the layer-to-layer) three-dimensional angle-interlock woven composite (3DAWC) was investigated using the acoustic emission (AE) technique, examination of damaged regions via light microscopy and micro-CT, and finite element analysis (FEA). AE events occurred during the entire fatigue process, and damage modes were determined based on cumulative fatigue d...

Exposure to wood dust, a human carcinogen, is common in wood-related industries, and millions of workers are occupationally exposed to wood dust worldwide. The comet assay is a rapid, simple, and sensitive method for determining DNA damage. The objective of this study was to investigate the DNA damage associated with occupational exposure to wood dust using the comet assay (peripheral blood sam...